A Devil on DOS — Joel B. Reed

ESPIONAGE/INTRIGUE. Sam McKee does not trust computers. He's seen technology fail too often when lives are on the line. When it comes to cybernetics, he believes Murphy's law rules. What can go wrong will go wrong. Training and experience are what gets the job done and in combating the dark world of corporate crime, McKee trusts his people and his gut. Yet McKee cannot argue with the impressive results technology delivers. To protect their work, he insists that Agency staff keep hard copies of their files. This causes grumbling among the rank and file, especially from McKee's brother, Jack, who splits his time between running the family ranch and herding the Agency's electronics. Then Michael Angelino, the Agency's cyber expert, discovers something disturbing. A small change in technology has made cyber viruses a major threat . What Angelino realizes very quickly is how a criminal organization might exploit these new viruses for profit. Even more disturbing are signs that the Cadre, a criminal cartel which the agency broke up, may be alive and well and doing exactly this. This is the fifth book in the Clan McKee Intrigue Series.